The AI ChatBot WordPress plugin before 4.5.1 does not sanitise and escape numerous of its settings, which could allow high privilege users such as admin to perform Stored Cross-Site Scripting attacks even when the unfiltered_html capability is disallowed (for example in multisite setup)
The AI ChatBot WordPress plugin before 4.4.7 unserializes user input from cookies via an AJAX action available to unauthenticated users, which could allow them to perform PHP Object Injection when a suitable gadget is present on the blog
The AI ChatBot WordPress plugin before 4.4.9 does not have authorisation and CSRF in the AJAX action responsible to update the OpenAI settings, allowing any authenticated users, such as subscriber to update them. Furthermore, due to the lack of escaping of the settings, this could also lead to Stored XSS